Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Treasury Stock	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Beginning balance, value at Dec. 29, 2018	$ 4,162,974	$ 17,979	$ 1,823,638	$ (397,692)	$ 2,710,619	$ 8,430
Net income	363,829				363,829
Translation adjustment	(8,920)					(8,920)
Adjustment related to unrealized gains (losses) on available-for-sale securities net of income tax effects	35,171					35,171
Comprehensive income	390,080
Dividends declared	(433,077)				(433,077)
Issuance of treasury stock related to equity awards	12,982		(29,464)	42,446
Stock compensation	30,961		30,961
Purchase of treasury stock related to equity awards	(12,954)			(12,954)
Ending balance, value at Jun. 29, 2019	4,150,966	17,979	1,825,135	(368,200)	2,641,371	34,681
Beginning balance, value at Mar. 30, 2019	4,315,286	17,979	1,810,196	(381,815)	2,850,588	18,338
Net income	223,656				223,656
Translation adjustment	314					314
Adjustment related to unrealized gains (losses) on available-for-sale securities net of income tax effects	16,029					16,029
Comprehensive income	239,999
Dividends declared	(432,873)				(432,873)
Issuance of treasury stock related to equity awards	12,982		(893)	13,875
Stock compensation	15,832		15,832
Purchase of treasury stock related to equity awards	(260)			(260)
Ending balance, value at Jun. 29, 2019	4,150,966	17,979	1,825,135	(368,200)	2,641,371	34,681
Beginning balance, value at Dec. 28, 2019	4,793,496	17,979	1,835,622	(345,040)	3,229,061	55,874
Net income	345,360				345,360
Translation adjustment	18,637					18,637
Adjustment related to unrealized gains (losses) on available-for-sale securities net of income tax effects	15,218					15,218
Comprehensive income	379,215
Dividends declared	(466,653)				(466,653)
Issuance of treasury stock related to equity awards	15,202		(15,411)	30,613
Stock compensation	31,484		31,484
Purchase of treasury stock related to equity awards	(11,883)			(11,883)
Ending balance, value at Jun. 27, 2020	4,740,861	17,979	1,851,695	(326,310)	3,107,768	89,729
Beginning balance, value at Mar. 28, 2020	4,934,400	17,979	1,830,052	(335,491)	3,390,053	31,807
Net income	184,180				184,180
Translation adjustment	24,813					24,813
Adjustment related to unrealized gains (losses) on available-for-sale securities net of income tax effects	33,109					33,109
Comprehensive income	242,102
Dividends declared	(466,465)				(466,465)
Issuance of treasury stock related to equity awards	15,202		5,718	9,484
Stock compensation	15,925		15,925
Purchase of treasury stock related to equity awards	(303)			(303)
Ending balance, value at Jun. 27, 2020	$ 4,740,861	$ 17,979	$ 1,851,695	$ (326,310)	$ 3,107,768	$ 89,729